12293140 has 12 divisors (see below), whose sum is σ = 25815636. Its totient is φ = 4917248.

The previous prime is 12293137. The next prime is 12293161. The reversal of 12293140 is 4139221.

It can be written as a sum of positive squares in 2 ways, for example, as 9821956 + 2471184 = 3134^2 + 1572^2 .

It is a super-2 number, since 2×12293140² = 302242582119200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307309 + ... + 307348.

It is an arithmetic number, because the mean of its divisors is an integer number (2151303).

Almost surely, 2^12293140 is an apocalyptic number.

12293140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12293140 is an abundant number, since it is smaller than the sum of its proper divisors (13522496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12293140 is a wasteful number, since it uses less digits than its factorization.

12293140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614666 (or 614664 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 12293140 is about 3506.1574408460. The cubic root of 12293140 is about 230.7921019497.

The spelling of 12293140 in words is "twelve million, two hundred ninety-three thousand, one hundred forty".